随着新课改的进一步深入,教材对学生的探究能力和动手实验能力进一步提高.如人教版《物理》必修2中的第七章第六节就是一节实验探究课,标题为:探究功与速度变化的关系.这节课的目的在于给学生增加探究与体验的机会,提高理论联系实际的水平.在教材的实验方案中,采用橡皮筋作为器材之一,而橡皮筋对小车的力是变力,所以教材所探讨的是变力做功的情况下小车速度的变化.现笔者以另一思 With the further deepening of the new curriculum reform, teaching materials on students to explore ability and hands-on ability to further improve.As the PEP “Physics” compulsory 2 in Chapter VII of the sixth chapter is a section of experimental inquiry, the title is: inquiry Power and speed of change.The purpose of this lesson is to give students an opportunity to explore and experience to improve the level of theory and practice.In the experimental program of teaching materials, the use of rubber band as one of the equipment, and rubber band on the car Force is variable, so the textbook is to explore the changes in the speed of change under the circumstances of variable force work.